How to take over a WordPress project built by another agency

A technical takeover should not start with a rebuild: audit, dependency mapping, backup, stabilization and then progressive evolution.

Custom WordPress example · Golden ConfortCustom WordPress example · Golden Confort
TAKE / 04Technical takeover
Take over without starting again.
Audit→Stabilize→Prioritize→Evolve

Taking over an existing WordPress website or platform is common: a provider changes, the project has become difficult to maintain, recurring bugs appear, technical debt grows or new features are required. The wrong response is often to decide too quickly that everything must be rebuilt.

1. Start by understanding the existing system

The first step is to map the system: theme, plugins, custom developments, scheduled tasks, webhooks, payments, APIs, WooCommerce rules, environments and external dependencies.

The objective is not only to understand “how the website is built”, but to identify what is critical to the business.

2. Secure the system before changing it

Before any significant intervention, a usable backup is required, the necessary access must be identified and, whenever possible, work should happen on a staging environment.

A clean takeover separates urgent issues from improvements. A payment incident, broken synchronization or security issue should not wait for a complete redesign.

3. Identify what can be kept

Old code is not automatically bad code. A stable, understood feature that still fits the business can remain. Conversely, a fragile stack of patches or a blocking dependency may justify a targeted rewrite.

This approach limits risk and focuses the budget on the areas that genuinely need to evolve.

4. Document the business flows

On advanced projects, the most important logic often sits behind the interface: order statuses, document generation, API calls, synchronization, pricing rules, payments or automation.

Documenting these flows makes it possible to fix and evolve the system without breaking processes that are invisible to end users.

5. Evolve progressively

Once the project is stable, improvements can be prioritized: performance, security, UX, automation, technical SEO, new integrations or refactoring of components that have become too expensive to maintain.

At DEV EVOLUER, we can start with this type of takeover before proposing custom development: understand first, stabilize second, then build only what genuinely needs to change.